1. break.py
2. consecutiveHeads2.py
3. consecutiveHeads.py
4. file_read_while.py
5. loop.py
6. therapist.py
7. while.py
8. whilevsfor.py

# Compares two versions of the same program, one uses break, one doesn't.
# Sara Sprenkle

# ---------- while LOOP ----------


# condition says when loop will continue
x=eval(input("Enter number: "))
while x % 2 != 0 :
	print("Error!")
	x = eval(input("Try again: "))
print(x, "is an even number. ") 


# ---------- while LOOP USING break ----------

print("--"*10)
print("Again, but using break")

# have to look inside loop to know when it stops
while True :
	x = eval(input("Enter number: "))
	if x % 2 == 0 :
		break
	print("Error!")
print(x, "is an even number.")

# Count how many times it takes to get 3 consecutive heads.
# This version uses a break statement
# By CSCI111

from random import randint

NUM_CONSECUTIVE = 3

print("This program finds how many coin flips are required before")
print("we get", NUM_CONSECUTIVE, "consecutive heads")

HEADS = 0
TAILS = 1

numConsHeads = 0
numFlips = 0

while True:
    side = randint(0, 1)
    if side == HEADS: # represents HEADS
        numConsHeads += 1
        print("HEADS")
    else:
        numConsHeads = 0
        print("TAILS")
    numFlips += 1
    
    if numConsHeads == NUM_CONSECUTIVE:
        break
    

print("It took", numFlips, "to reach", NUM_CONSECUTIVE, "heads")

# Count how many times it takes to get 3 consecutive heads
# By CSCI111

from random import randint

NUM_CONSECUTIVE = 3

print("This program finds how many coin flips are required before")
print("we get", NUM_CONSECUTIVE, "consecutive heads")

HEADS = 0
TAILS = 1

numConsHeads = 0
numFlips = 0

while numConsHeads < NUM_CONSECUTIVE :
    side = randint(0, 1)
    if side == HEADS: # represents HEADS
        numConsHeads += 1
        print("HEADS")
    else:
        numConsHeads = 0
        print("TAILS")
    numFlips += 1

print("It took", numFlips, "to reach", NUM_CONSECUTIVE, "heads")

# Opens a file, reads the file one line at a time, and prints the
# contents
# by Sara Sprenkle

FILENAME="data/majors.dat"

# creates a new file object, opening the file in "read" mode
dataFile = open(FILENAME, "r")

# The following code reads in the file, 
# line-by-line and displays the contents of the file
line = dataFile.readline()

# the empty string means that we've reached the end of the file.
while line != "":
    # The check on the condition happens _before_ we strip off the 
    # ending whitespace.  That ordering is important for correct file handling.
    # Note that you don't want to use rstrip() if you want to preserve the
    # whitespace at the end of the lines in the file.
    line = line.rstrip()
    print(line)
    line = dataFile.readline()

# close the file with the method "close"
dataFile.close()

# What does this loop do?
# Sara Sprenkle

count = 1
while count > 0:
	print(count)
	count += 1

# The Very Simple Therapist
# CSCI 111

print("-"*60)
print("Welcome to computerized therapy!")
print("You will get your money's worth.")
print("Our session is over when you have nothing more to tell me.")
print("-"*60)

user_input = input("Tell me what's wrong.\n")

while user_input != "":
    user_input = input("How does that make you feel?\n")

print("Thank you!  Come again!")

# Demonstrates a simple while loop.
# Trace through program and show what would be output.
# Sara Sprenkle

i = 0
while i < 10 :
    print("i equals", i)
    i+=1
print("Done", i)

# Code to compare a while loop with a for loop
# by Sara Sprenkle

# ---------- WHILE LOOP ----------

print("While Loop Demo")
i=0
while i < 10:
    print("i equals", i)
    i += 1
print("Done", i)

# ---------- FOR LOOP ----------

print("\nFor Loop Demo")
for i in range(10):
    print("i equals", i)

print("Done", i)

# To give exactly the same output as the while loop, would need to print out i+1